Failure propagation analysis of aircraft engine system based on the small-world net model

To find the failure propagation mechanism from the complex electromechanical system of aircraft engine, this paper used the topological structure to describe the coupling relations, discussing the role of topological geometry method in the failure propagation. The topological structure statistical properties of the system were analyzed with small world net theory??and a failure propagation model based on the small world clustering was proposed, and the failure propagation paths and relevant key nodes with high pervasion ability were found with the Dijkstra algorithm. The results verify that this method can effectively find the weak point in the system, and provide an important basis for design improvements and failure prevention.